I have a convertible. My nephew in law? (Wife's brothers son, now I wonder how you express that in Toki, you don't bother, he's just young relative maybe?) had

I have a convertible. My nephew in law? (Wife's brothers son, now I wonder how you express that in Toki, you don't bother, he's just young relative maybe?) had seen that car when I visit several times over the course of a few years, and it just happened that in his entire short life up to then, he had never seen it with the top up. One day we show up with the top up. We're inside and he comes in to tell his parents my car has "a cover or shield" I don't know why but we all love this.